7 lines (6 with data), 252 Bytes

f120a 0 128 0 15:04:00 06/02/1989
# Start time=15:04
# First beat=15:07:13.210
# <age-range>: 65-69, <sex>: Male, <medication>: None
# <RR-low-limit(sec)>: 0.554,  <RR-high-limit(sec)>: 1.367
# Note: recording with a timing signal, flutter-compensated